931. When cut-off ratio is __________ the efficiency of Diesel cycle approaches to Otto cycle efficiency.
A. zero
B. 1/5
C. 4/5
D. 1

932. A series of operations, which takes place in a certain order and restore the initial conditions at the end, is known as
A. reversible cycle
B. irreversible cycle
C. thermodynamic cycle
D. none of these

933. An isothermal process is governed by
A. Boyle’s law
B. Charles’ law
C. Gay-Lussac law
D. Avogadro’s law

934. An air preheater is installed
A. before the economiser
B. before the superheater
C. between the economiser and chimney
D. none of these

935. The length of shell of a Locomotive boiler is
A. 1 m
B. 2 m
C. 3 m
D. 4 m

936. In a uniflow engine
A. steam enters and exhausts through the same port
B. steam enters at one end and exhausts at the centre
C. steam enters at the centre and exhausts at the other end
D. none of the above

937. The shell diameter of a Locomotive boiler is
A. 1 m
B. 1.5 m
C. 2 m
D. 2.5 m

938. The sum of internal energy (U) and the product of pressure and volume (p.v) is known as
A. workdone
B. entropy
C. enthalpy
D. none of these

939. The value of 1 mm of Hg is equal to
A. 1.333 N/m2
B. 13.33 N/m2
C. 133.3 N/m2
D. 1333 N/m2

940. One kg of carbon requires 4/3 kg of oxygen and produces __________ kg of carbon monoxide gas.
A. 8/3
B. 11/3
C. 11/7
D. 7/3

NOTE
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PLEASE COMMENT WITH CORRECT ANSWER AND ITS DETAIL EXPLANATION IN COMMENT BOX.
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